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[C++] Speed up CopyBitmap/InvertBitmap #50784

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[C++] Speed up CopyBitmap/InvertBitmap#50784
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AntoinePrv
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Component: C++Type: enhancement
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26.0.0

Description

@AntoinePrv
AntoinePrv
opened on Aug 3, 2026

Describe the enhancement requested

When the input and output are both bit-unaligned, TransferBitmap function repeatedly keeps things unaligned.
A small initial transfer is enough to make one of them aligned.

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C++

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  1. AntoinePrv
    added
    Type: enhancement
    on Aug 3, 2026
  2. github-actions
    added
    Component: C++
    on Aug 3, 2026
  3. github-actions
    assigned
    AntoinePrv
    on Aug 3, 2026
  4. pitrou
    added a commit that references this issue on Aug 24, 2026

    GH-50784: [C++] Align write in `TransferBitmap` (#50785)

    a0a472a
  5. pitrou
    added this to the 26.0.0 milestone on Aug 24, 2026

  6. pitrou commented on Aug 24, 2026

    @pitrou
    pitrou
    on Aug 24, 2026
    Member

    Issue resolved by pull request 50785
    #50785

  7. pitrou
    closed this as completedon Aug 24, 2026
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